The technique of laser-induced breakdown spectroscopy for determination of heavy metals in the receiving body of water

Abstract

Increasing human activity has highlighted the need for rapid and accurate chemical analysis of contaminants. Laser Induced Plasma Spectroscopy (LIBS) is an ideal solution because it has advantages such as in-situ analysis capable, it does not require sample preparation and the amount of sample required for analysis is minimal. This paper uses LIBS for heavy metals analysis in receiving water bodies. The LIBS system employed uses a Q: Switched multipulsed Nd:YAG laser, which favors the intensity of the emission spectra, showing sharper and improved detection limits. The obtained results are used in training a neural network to predict the elemental composition.